

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>
<head>
<script type="text/javascript" src="helpman_topicinit.js"></script>

<title>P [Enterprise Architect User Guide]</title>

<meta name="keywords" content="Enterprise Architect, Sparx Systems, UML, Glossary,Glossary P">
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
<meta http-equiv="Content-Style-Type" content="text/css" />

<link type="text/css" href="default.css" rel="stylesheet" />
<style type="text/css">
  A, A:Visited
  {
    color: #00F;
  }

  A:Active, A:Hover
  {
    color: #F00;
  }

  OL
  {
    margin: 5px 0 5px 48px;
  }

  UL
  {
    margin-bottom: 3px;
    margin-top: 0;
  }

  #nsr
  {
    background-color: #D4DFFF;
  }

  #nsr A
  {
    text-decoration: none;
  }

  #mainbody
  {
    padding: 8px;
  }

  .p_BodyText
  {
    padding: 5px 0;
  }
</style>



<style type="text/css" media="screen">
  BODY
  {
    background-color: #FFFFFF;
  }

  #nsr
  {
    padding: 6px 6px 0 6px;
    border-bottom: none;
    vertical-align: top;
    z-index: 2;
    visibility: visible;
    left: 0;
    top: 0;
    position: absolute;
  }

  #mainbody
  {
    left: 0;
    top: 0;
    margin: 0;
    position: absolute;
    padding: 10px;
    overflow: auto;
    height: 100%;
    z-index: 1;
    background-repeat: no-repeat;
    background-position: bottom right;
    background-attachment: fixed;
  }
</style>

<style type="text/css" media="print">
  #nsr
  {
    visibility: none;
  }

  #mainbody
  {
    overflow: visible;
  }
</style>
<script type="text/javascript" language="JavaScript" src="nonscroll.js"></script>

</head>
<body scroll="no">

<div id="page">



        <div id="content">
          <div id="content-inner">
          



  
          <div id="nsr">
            <table border="0" cellspacing="0" cellpadding="4" width="100%">
              <tr valign="top">
                <td align="left">
  


                  <div style="text-align: left; text-indent: 0px; padding: 0px 0px 0px 0px; margin: 0px 0px 0px 0px;"><table cellspacing="0" cellpadding="0" border="0" style="border: none; border-spacing:0px;">
<tr style="text-align:left;vertical-align:top;">
<td valign="middle" width="33" style="width:33px;"><p class="p_Heading1"><a href="glossaryofterms.htm"><img src="glossary%20page.gif" width="29" height="29" border="0" alt="Glossary Page"></a></p>
</td>
<td valign="middle" width="718" style="width:718px;"><p class="p_Heading1"><span class="f_Heading1">~P~</span></p>
</td>
</tr>
</table>
</div>



  
                </td>
                <td align="right">
                  <a href="introduction.htm" onmouseover="document.images.main.src='button_main_h.gif'" onmouseout="document.images.main.src='button_main.gif'">
                    <img name="main" src="button_main.gif" border=0 alt="Return to Introduction">
                  </a>&nbsp;
    
                  <a href="o(glossary).htm" onmouseover="document.images.prev.src='button_prev_h.gif'" onmouseout="document.images.prev.src='button_prev.gif'">
                    <img name=prev src="button_prev.gif" border=0 alt="Previous page" />
                  </a>&nbsp;
    
    
    
                  <a href="q(glossary).htm" onmouseover="document.images.next.src='button_next_h.gif'" onmouseout="document.images.next.src='button_next.gif'">
                    <img name=next src="button_next.gif" border=0 alt="Next page" />
                  </a>
    
    
                </td>
              </tr>
            </table>
          </div>
          <div id="mainbody">
  


                <p class="p_Glossaryitem"><span class="f_Glossaryitem">package</span></p>
<ol style="text-indent: 0px; margin-left: 61px; list-style-position: outside;">
<li value=1><span class="f_Glossarytext">A namespace, as well as an element that can be contained in other packages' namespaces. Packages can own or merge with other packages, and their elements can be imported into a package's namespace.</span></li>
<li value=2><span class="f_Glossarytext">A logical container of model elements. It groups elements and can also contain other packages.</span></li>
</ol>
<p class="p_Glossarytext"><span class="f_Glossarytext">The OMG UML specification (</span><span class="f_Glossarytext" style="font-style: italic;">UML Superstructure Specification, v2.1.1, p. 109</span><span class="f_Glossarytext">) states:</span></p>
<p class="p_OMGText" style="margin: 5px 0px 5px 70px;"><span class="f_OMGText">A package is used to group elements, and provides a namespace for the grouped elements.</span></p>
<p class="p_OMGText" style="margin: 5px 0px 5px 70px;"><span class="f_OMGText">A package is a namespace for its members, and may contain other packages. Only packageable elements can be owned members of a package. By virtue of being a namespace, a package can import either individual members of other packages, or all the members of other packages.</span></p>
<p class="p_OMGText" style="margin: 5px 0px 5px 71px;"><span class="f_OMGText">In addition a package can be merged with other packages.</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext">Note that packages own model elements and are the basis for configuration control, storage and access control. Each element can be directly owned by a single package, so the package hierarchy is a strict tree. However, packages can reference other packages, modeled by using one of the stereotypes &laquo;</span><span class="f_Glossarytext" style="font-style: italic;">import</span><span class="f_Glossarytext">&raquo; and &laquo;</span><span class="f_Glossarytext" style="font-style: italic;">access</span><span class="f_Glossarytext">&raquo; of Permission dependency, so the usage network is a graph. Other kinds of dependencies between packages usually imply that one or more dependencies among the elements exist.</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext">A package is represented by the common folder icon - a large rectangle with a small rectangle (a 'tab') attached to the left side on top.</span></p>
<p class="p_Glossaryitem"><span class="f_Glossaryitem">package diagram</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext">Used to reflect the organization of packages and their elements, and provide a visualization of their corresponding namespaces.</span></p>
<p class="p_Glossaryitem"><span class="f_Glossaryitem">package import</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext">A package import relationship is drawn from a source package to a package whose contents are imported. Private members of a target package cannot be imported.</span></p>
<p class="p_Glossaryitem"><span class="f_Glossaryitem">package merge</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext">Indicates a relationship between two packages whereby the contents of the target package are merged with those of the source package. Private contents of a target package are not merged.</span></p>
<p class="p_Glossaryitem"><span class="f_Glossaryitem">parameter</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext">The specification of a variable that can be changed, passed, or returned. A parameter can include a name, type, and direction. Parameters are used for operations, messages and events.</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext" style="font-style: italic;">Synonym:</span><span class="f_Glossarytext"> </span><span class="f_Glossarytext">formal parameter</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext" style="font-style: italic;">Contrast: </span><span class="f_Glossarytext">argument, actual parameter</span></p>
<p class="p_Glossaryitem"><span class="f_Glossaryitem">parameterized element</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext">The descriptor for a Class with one or more unbound parameters.</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext" style="font-style: italic;">Synonym: </span><span class="f_Glossarytext">template, parameterized class</span></p>
<p class="p_Glossaryitem"><span class="f_Glossaryitem">parent</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext">In a generalization relationship, the generalization of another element, the child.</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext" style="font-style: italic;">See also:</span><span class="f_Glossarytext"> subclass, subtype</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext" style="font-style: italic;">Contrast</span><span class="f_Glossarytext">:</span><span class="f_Glossarytext"> child</span></p>
<p class="p_Glossaryitem"><span class="f_Glossaryitem">part</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext">A run-time instance of a Class or Interface.</span></p>
<p class="p_Glossaryitem"><span class="f_Glossaryitem">participate</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext">The connection of a model element to a relationship or to a reified relationship. For example, a Class participates in an Association, an Actor participates in a Use Case.</span></p>
<p class="p_Glossaryitem"><span class="f_Glossaryitem">partition</span></p>
<ol style="text-indent: 0px; margin-left: 61px; list-style-position: outside;">
<li value=1><span class="f_Glossarytext">activity graphs: A portion of an activity graph that organizes the responsibilities for actions.</span></li>
</ol>
<p class="p_Glossarytext"><span class="f_Glossarytext" style="font-style: italic;">See also:</span><span class="f_Glossarytext"> swim lane</span></p>
<ol style="text-indent: 0px; margin-left: 61px; list-style-position: outside;">
<li value=2><span class="f_Glossarytext">architecture: A set of related classifiers or packages at the same level of abstraction or across layers in a layered architecture. A partition represents a vertical slice through an architecture, whereas a layer represents a horizontal slice.</span></li>
</ol>
<p class="p_Glossarytext"><span class="f_Glossarytext" style="font-style: italic;">Contrast: </span><span class="f_Glossarytext">layer</span></p>
<p class="p_Glossaryitem"><span class="f_Glossaryitem">pattern</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext">A template collaboration.</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext" style="font-style: italic;">See also:</span><span class="f_Glossarytext"> framework</span></p>
<p class="p_Glossaryitem"><span class="f_Glossaryitem">persistent object</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext">An object that exists after the process or thread that created it has ceased to exist.</span></p>
<p class="p_Glossaryitem"><span class="f_Glossaryitem">physical system</span></p>
<ol style="text-indent: 0px; margin-left: 61px; list-style-position: outside;">
<li value=1><span class="f_Glossarytext">The subject of a model.</span></li>
<li value=2><span class="f_Glossarytext">A collection of connected physical units, which can include software, hardware and people, that are organized to accomplish a specific purpose. A physical system can be described by one or more models, possibly from different viewpoints.</span></li>
</ol>
<p class="p_Glossarytext"><span class="f_Glossarytext" style="font-style: italic;">See also: </span><span class="f_Glossarytext">model (MOF)</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext" style="font-style: italic;">Contrast:</span><span class="f_Glossarytext"> system</span></p>
<p class="p_Glossaryitem"><span class="f_Glossaryitem">port</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext">Defines the interaction between a classifier and its environment. Interfaces controlling this interaction can be depicted using the 'Expose Interface' toolbox icon.</span></p>
<p class="p_Glossaryitem"><span class="f_Glossaryitem">postcondition</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext">A constraint that must be true at the completion of an operation.</span></p>
<p class="p_Glossaryitem"><span class="f_Glossaryitem">precondition</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext">A constraint that must be true when an operation is invoked.</span></p>
<p class="p_Glossaryitem"><span class="f_Glossaryitem">primitive type</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext">A pre-defined basic datatype without any substructure, such as an integer or a string.</span></p>
<p class="p_Glossaryitem"><span class="f_Glossaryitem">process</span></p>
<ol style="text-indent: 0px; margin-left: 61px; list-style-position: outside;">
<li value=1><span class="f_Glossarytext">A heavyweight unit of concurrency and execution in an operating system.</span></li>
</ol>
<p class="p_Glossarytext"><span class="f_Glossarytext" style="font-style: italic;">Contrast:</span><span class="f_Glossarytext"> thread, which includes heavyweight and lightweight processes. If necessary, an implementation distinction can be made using stereotypes.</span></p>
<ol style="text-indent: 0px; margin-left: 61px; list-style-position: outside;">
<li value=2><span class="f_Glossarytext">A software development process - the steps and guidelines by which to develop a system.</span></li>
<li value=3><span class="f_Glossarytext">To execute an algorithm or otherwise handle something dynamically.</span></li>
</ol>
<p class="p_Glossaryitem"><span class="f_Glossaryitem">product</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext">A physical piece of information that is produced by a business or development process. Examples of products include models, source files, scripts, and binary executable files. An product can constitute the implementation of a deployable component.</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext" style="font-style: italic;">Synonym</span><span class="f_Glossarytext">: artifact</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext" style="font-style: italic;">Contrast: </span><span class="f_Glossarytext">component</span></p>
<p class="p_Glossaryitem"><span class="f_Glossaryitem">profile</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext">A stereotyped package that contains model elements that have been customized for a specific domain or purpose using extension mechanisms, such as stereotypes, tagged definitions and constraints. A profile can also specify model libraries on which it depends and the metamodel subset that it extends.</span></p>
<p class="p_Glossaryitem"><span class="f_Glossaryitem">Project Browser</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext">The workspace window where the model contents are displayed in 'tree' format. Displays structures such as packages, diagrams and model elements.</span></p>
<p class="p_Glossaryitem"><span class="f_Glossaryitem">projection</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext">A mapping from a set to its subset.</span></p>
<p class="p_Glossaryitem"><span class="f_Glossaryitem">property</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext">A named value denoting a characteristic of an element. A property has semantic impact. Certain properties are predefined in the UML; others can be user defined.</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext" style="font-style: italic;">See also:</span><span class="f_Glossarytext"> tagged value</span></p>
<p class="p_Glossaryitem"><span class="f_Glossaryitem">pseudo-state</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext">A vertex in a State Machine that has the form of a State, but doesn't behave as a State. Pseudo-states include initial and history vertices.</span></p>
<p class="p_Glossaryitem"><span class="f_Glossaryitem">published model [MOF]</span></p>
<p class="p_Glossarytext"><span class="f_Glossarytext">A model that has been frozen, and that becomes available for instantiating repositories and for support in defining other models. A frozen model's model elements cannot be changed.</span></p>




            </div>
          </div>
        </div>



</div>


</body>
</html>
